When a person who was killed right in front of Phoebe comes back from the dead to blame her, she becomes guilt-ridden and vulnerable, creating an opportunity for Zankou to steal the Book of Shadows. Meanwhile, Paige has a new charge who knows nothing about magic, and Piper and Leo attempt to plan Chris's first birthday party.

When the sisters try to divert Zankou's attention from the Nexus, he hatches a plan to absorb all their powers. But when the girls realize what Zankou is up to, they are forced with a life-altering decision: sacrifice their powers or their lives.